For the area, you will do better if you do 4 things. 1. calculate the cross sectional are in the stack in sq. in. and then divide that by the open inside width between the side walls on the blocks. That answer will be the approximate distance you want between the fillers you have under the rear pans, maybe within 1/4-1/2". 2. The filler you have should so,me how be fixed so it forces all of the heat up, looking at the picture, quite a bit can go around, along the right side. 3. use something as a gasket for between the blocks and the pans, cold air can now get in along the sides and cool the pans. 4. have the width of the base stack be nearly as wide as the width between the 2 sides, now there is a partial dead spot where the heat does not get to the pans as well, because it is flowing towards the narrow base stack.
Also, maybe the stack should be a little larger diameter, what is that now? Think about that before you set the space under the pans towards the back.
Last edited by maple flats; 03-04-2019 at 07:05 PM.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.